Chemistry
What happens to the kinetic energy when a solid substance is heated?
- Increases
- Decreases
- No change
- May increase or decrease
Matter
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Answer
Increases
Reason — When a solid substance is heated, its molecules gain more energy and start to move faster. This increase in the motion of molecules leads to an increase in their kinetic energy. The higher the temperature, the greater the kinetic energy of the particles.
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Related Questions
Which of the following substances has the largest intermolecular spaces?
- A piece of iron metal
- A glass of water
- A spoon of common salt
- A balloon filled with hydrogen gas
The type of energy possessed by a moving body is called as:
- Electrical energy
- Light energy
- Heat energy
- Kinetic energy
Assertion (A): Matter exists in three states; i.e. solids, liquids and gases.
Reason (R): The intermolecular forces of attraction and intermolecular spaces are different in different kinds of matter.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): Liquid molecules can move freely and are able to occupy the whole space available to them.
Reason (R): The molecules of liquids have larger intermolecular spaces and weaker intermolecular forces of attraction than those in solids.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.